A block of mass of 9kg is hit by a force of magnitude F which causes the block to have an acceleration of magnitude a. If a second block with mass of 45 kg is hit by the dame force, then which of these is the magnitude of acceleration of the second block?A) 2.2361aB)aC) one/25 of aD) one fifth of aE) 25a

Respuesta :

We are given that a mass of 9kg is hit by a force "F". According to Newton's second law we have:

[tex]F=ma_1[/tex]

Plugging in the values we get:

[tex]F=(9kg)a_1[/tex]

Now, we are given that a second block with a mass 45 kg is hit by the same force. Using newton's second law we get:

[tex]F=(45kg)a_2[/tex]

Now, we divide both equations:

[tex]\frac{F}{F}=\frac{(9kg)a_1}{(45kg)a_2}[/tex]

Now, we cancel out the "F":

[tex]1=\frac{(9kg)a_1}{(45kg)a_2}[/tex]

Now, we multiply both sides by "a2":

[tex]a_2=\frac{(9kg)a_1}{(45kg)}[/tex]

Simplifying we get:

[tex]a_2=\frac{1}{5}a_1[/tex]

Therefore, the acceleration of the second block is one-fifth of the acceleration of the first block.